Emit and Read min/max statistics for int96 timestamp columns

Describe the enhancement requested

Parquet-java does not emit or read stats for int96 timestamp columns. Since int96 is used as the default timestamp in spark, this limits a lot of optimization opportunities. Engines like Photon populate the statistics for the int96 timestamps correctly. So parquet-java coud also emit the statistics, and also allow reading these statistics from known good writers.

Component(s)

No response

首先，跟踪 parquet-java 现有的 timestamp 列统计信息处理，并将预期的 int96 min/max 表示与 Photon 等已知行为正确的 writer 进行比较。当 parquet-java 能够为 int96 timestamp 列生成并读取正确的 min/max 统计信息，并覆盖这两条路径时，这项工作就完成了。